Theodotus of Chios

Theodotus of Chios (died 42 BC) was the tutor of Ptolemy XIII in history, philosophy, and rhetoric.

Biography
Theodotus of Chios was a trained rhetorician and the tutor of Pharaoh Ptolemy XIII, leading the guardianship for the young king after the death of Ptolemy XII; Pothinus and Achillas served as co-regents. In 50 BC, he arranged for Ptolemy and his sister Cleopatra to serve as co-rulers of Egypt, only to expel Cleopatra in 49 BC due to a power struggle between Ptolemy and his sister. When Julius Caesar arrived in Egypt in 48 BC, it was Theodotus who presented Pompey the Great's severed head to Caesar as a gift; Caesar was disgusted and wept at the sight of his respected rival's desecrated body. Theodotus would escape from Egypt during the Alexandrine Civil War between the two siblings, only to be brutally executed by Marcus Junius Brutus upon his arrival in Asia Minor.